Merge branch 'releases.3.4' of ssh://git.sangoma.com/smg_freeswitch into releases.3.4

libs/freetdm/src/ftdm_state.c

@@ -87,6 +87,7 @@ FT_DECLARE(ftdm_status_t) _ftdm_channel_complete_state(const char *file, const c
 	ftdm_assert(!fchan->history[hindex].end_time, "End time should be zero!\n");
 
 	fchan->history[hindex].end_time = ftdm_current_time_in_ms();
+	fchan->last_state_change_time = ftdm_current_time_in_ms();
 
 	fchan->state_status = FTDM_STATE_STATUS_COMPLETED;
 

libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_cli.c

@@ -1632,7 +1632,9 @@ static ftdm_status_t handle_tx_rsc(ftdm_stream_handle_t *stream, int span, int c
 				ftdm_mutex_lock(ftdmchan->mutex);
 
 				/* throw the reset flag */
-				sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
+				sngss7_set_ckt_flag (sngss7_info, FLAG_LOCAL_REL);
+				sngss7_clear_ckt_flag (sngss7_info, FLAG_REMOTE_REL);
+				sngss7_tx_reset_restart(sngss7_info);
 
 				switch (ftdmchan->state) {
 				/**************************************************************************/

libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_handle.c

@@ -122,8 +122,11 @@ ftdm_status_t handle_con_ind(uint32_t suInstId, uint32_t spInstId, uint32_t circ
 
 		/* as per Q.764, 2.8.2.3 xiv ... remove the block from this channel */
 		sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX);
+		sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX_DN);
 		sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_BLOCK_RX);
+		sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_BLOCK_RX_DN);
 		sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_MN_BLOCK_RX);
+		sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_GRP_MN_BLOCK_RX_DN);
 
 		/* KONRAD FIX ME : check in case there is a ckt and grp block */
 	}
@@ -324,9 +327,8 @@ handle_glare:
 
 		/* throw the TX reset flag */
 		if (!sngss7_tx_reset_status_pending(sngss7_info)) {
-			sngss7_info->ckt_flags=0;
+			sngss7_tx_reset_restart(sngss7_info);
 			sngss7_set_ckt_flag (sngss7_info, FLAG_REMOTE_REL);
-			sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
 
 			/* go to RESTART */
 			ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
@@ -398,9 +400,8 @@ ftdm_status_t handle_con_sta(uint32_t suInstId, uint32_t spInstId, uint32_t circ
 
 			/* throw the TX reset flag */
 			if (!sngss7_tx_reset_status_pending(sngss7_info)) {
-				sngss7_info->ckt_flags=0;
+				sngss7_tx_reset_restart(sngss7_info);
 				sngss7_set_ckt_flag (sngss7_info, FLAG_REMOTE_REL);
-				sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
 
 				/* go to RESTART */
 				ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
@@ -665,9 +666,8 @@ ftdm_status_t handle_con_cfm(uint32_t suInstId, uint32_t spInstId, uint32_t circ
 
 		/* throw the TX reset flag */
 		if (!sngss7_tx_reset_status_pending(sngss7_info)) {
-			sngss7_info->ckt_flags=0;
+			sngss7_tx_reset_restart(sngss7_info);
 			sngss7_set_ckt_flag (sngss7_info, FLAG_REMOTE_REL);
-			sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
 
 			/* go to RESTART */
 			ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
@@ -769,6 +769,10 @@ ftdm_status_t handle_rel_ind(uint32_t suInstId, uint32_t spInstId, uint32_t circ
 
 			/* send out the release complete */
 			ft_to_sngss7_rlc (ftdmchan);
+		} else {
+			SS7_DEBUG_CHAN(ftdmchan, "Collision of REL messages - resetting state.\n", " ");
+			ft_to_sngss7_rlc (ftdmchan);
+			goto rel_ind_reset;
 		}
 		break;
 	/**************************************************************************/
@@ -791,11 +795,11 @@ ftdm_status_t handle_rel_ind(uint32_t suInstId, uint32_t spInstId, uint32_t circ
 	/**************************************************************************/
 	default:
 
+rel_ind_reset:
 		/* throw the TX reset flag */
 		if (!sngss7_tx_reset_status_pending(sngss7_info)) {
-		    sngss7_info->ckt_flags=0;
 			sngss7_set_ckt_flag (sngss7_info, FLAG_REMOTE_REL);
-		    sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX);
+			sngss7_tx_reset_restart(sngss7_info);
 
 		    /* go to RESTART */
 		    ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
@@ -1650,6 +1654,7 @@ ftdm_status_t handle_blo_req(uint32_t suInstId, uint32_t spInstId, uint32_t circ
 
 	/* throw the ckt block flag */
 	sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX);
+	sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX_DN);
 
 	/* set the channel to suspended state */
 	ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_SUSPENDED);
@@ -1981,7 +1986,7 @@ ftdm_status_t handle_rsc_rsp(uint32_t suInstId, uint32_t spInstId, uint32_t circ
 		sngss7_set_ckt_flag(sngss7_info, FLAG_RESET_TX_RSP);
 
 		/* go to DOWN */
-		/*ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_DOWN);*/
+		ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
 
 		break;
 	/**********************************************************************/

libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_main.c

@@ -826,6 +826,14 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 		/*this state is set when the line is hanging up */
 		sngss7_send_signal(sngss7_info, FTDM_SIGEVENT_STOP);
 			
+		/* If the RESET flag is set, do not say in TERMINATING state.
+		   Go back to RESTART state and wait for RESET Confirmation */ 
+		if (sngss7_tx_reset_status_pending(sngss7_info)) {
+			SS7_DEBUG_CHAN(ftdmchan,"Reset pending in Terminating state!%s\n", "");
+			state_flag = 0;
+			ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
+		}
+
 		break;
 	/**************************************************************************/
 	case FTDM_CHANNEL_STATE_HANGUP:	/*call is hung up locally */
@@ -880,9 +888,9 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 					state_flag = 0;
 					ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_DOWN);
 				} else {
-					/* go to RESTART State until RSCa is received */
-					state_flag = 0;
-					ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
+					/* Stay in hangup complete until RSC is received */
+					/* Channel is in use if we go to RESTART we will 
+					   restart will just come back to HANGUP_COMPLETE */
 				}	
 			} else {
 				/* if the hangup is from a rx RSC, rx GRS, or glare don't sent RLC */
@@ -902,6 +910,7 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			SS7_DEBUG_CHAN(ftdmchan,"Completing remotely requested hangup!%s\n", "");
 		} else if (sngss7_test_ckt_flag (sngss7_info, FLAG_LOCAL_REL)) {
 			
+
 			/* if this hang up is do to a rx RESET we need to sit here till the RSP arrives */
 			if (sngss7_test_ckt_flag (sngss7_info, FLAG_RESET_TX_RSP)) {
 				/* go to the down state as we have already received RSC-RLC */
@@ -925,9 +934,11 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 	case FTDM_CHANNEL_STATE_DOWN:	/*the call is finished and removed */
 					
 		if (ftdmchan->last_state == FTDM_CHANNEL_STATE_SUSPENDED) { 
-			SS7_DEBUG("re-entering state from processing block/unblock request ... do nothing\n");
+			if (!ftdm_test_flag (ftdmchan, FTDM_CHANNEL_OPEN)) {
+				SS7_DEBUG_CHAN(ftdmchan,"Down came from SUSPEND - break %s\n", "");
 				break;
 			}
+		}
 
 		/* check if there is a reset response that needs to be sent */
 		if (sngss7_test_ckt_flag (sngss7_info, FLAG_RESET_RX)) {
@@ -997,7 +1008,10 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 					} /* if (!ftdm_test_flag (ftdmchan, FTDM_CHANNEL_SIG_UP)) */
 				} else {
 					state_flag = 0;
+					SS7_DEBUG_CHAN(ftdmchan,"Down detected blocked flags go to SUSPEND %s\n", " ");
 					ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_SUSPENDED);
+					break;
+			
 				}	/* if !blocked */
 			} else {
 				SS7_DEBUG_CHAN(ftdmchan,"Reset flags present (0x%X)\n", sngss7_info->ckt_flags);
@@ -1029,6 +1043,7 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 		if (ftdm_test_flag (ftdmchan, FTDM_CHANNEL_OPEN)) {
 			ftdm_channel_t *close_chan = ftdmchan;
 			/* close the channel */
+			SS7_DEBUG_CHAN(ftdmchan,"FTDM Channel Close %s\n", "");
 			ftdm_channel_close (&close_chan);
 		}
 
@@ -1205,6 +1220,14 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			/* clear the PAUSE flag */
 			sngss7_clear_ckt_flag(sngss7_info, FLAG_INFID_PAUSED);
 
+			if (sngss7_test_ckt_flag (sngss7_info, FLAG_LOCAL_REL)) {
+				SS7_DEBUG_CHAN(ftdmchan, "Channel local release on RESUME, restart Reset procedure%s\n", "");
+				/* By setting RESET_TX flag the check below sngss7_tx_reset_status_pending() will
+				   be true, and will restart the RESET TX procedure */
+				sngss7_set_ckt_flag (sngss7_info, FLAG_REMOTE_REL);
+				sngss7_set_ckt_flag (sngss7_info, FLAG_RESET_TX);
+			}	
+
 			/* We have transmitted Reset/GRS but have not gotten a
 			 * Response. In mean time we got a RESUME. We cannot be sure
 			 * that our reset has been trasmitted, thus restart reset procedure. */ 
@@ -1250,7 +1273,6 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			}
 
 			/* Wait for RESUME */
-			/* FIXME: Check if this is a correct action to wait for RESUME */
 			goto suspend_goto_last;
 		} /* if (sngss7_test_ckt_flag(sngss7_info, FLAG_INFID_PAUSED)) { */
 
@@ -1269,8 +1291,6 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			/* throw the done flag */
 			sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX_DN);
 
-			/* check the last state and return to it to allow the call to finish */
-			goto suspend_goto_last;
 		}
 
 		if (sngss7_test_ckt_blk_flag (sngss7_info, FLAG_CKT_MN_UNBLK_RX)){
@@ -1295,8 +1315,6 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			/* send a uba */
 			ft_to_sngss7_uba (ftdmchan);
 
-			/* check the last state and return to it to allow the call to finish */
-			goto suspend_goto_last;
 		}
 
 
@@ -1316,7 +1334,6 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			}
 			sngss7_set_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_BLOCK_TX_DN);
 
-			goto suspend_goto_last;
 		}
 
 		if (sngss7_test_ckt_blk_flag(sngss7_info, FLAG_GRP_HW_UNBLK_TX)) {
@@ -1341,10 +1358,11 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			}
 
 			if (sngss7_tx_block_status_clear(sngss7_info) && !skip_unblock) {
+				sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_LC_BLOCK_RX_DN);
+				sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_LC_BLOCK_RX);
 				ft_to_sngss7_ubl(ftdmchan);
 			}
 
-			goto suspend_goto_last;
 		}
 
 		/**********************************************************************/
@@ -1398,8 +1416,6 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			/* throw the done flag */
 			sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_TX_DN);
 
-			/* check the last state and return to it to allow the call to finish */
-			goto suspend_goto_last;
 		}
 		
 		if (sngss7_test_ckt_blk_flag (sngss7_info, FLAG_CKT_MN_UNBLK_TX)) {
@@ -1420,11 +1436,11 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 
 			if (sngss7_tx_block_status_clear(sngss7_info)) {
 				/* send a ubl */
+				sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_LC_BLOCK_RX_DN);
+				sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_LC_BLOCK_RX);
 				ft_to_sngss7_ubl(ftdmchan);
 			}
 
-			/* check the last state and return to it to allow the call to finish */
-			goto suspend_goto_last;
 		}
 
 		/**********************************************************************/
@@ -1434,16 +1450,20 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			SS7_DEBUG_CHAN(ftdmchan, "Processing CKT_LC_BLOCK_RX flag %s\n", "");
 
 			/* send a BLA */
-			/*ft_to_sngss7_bla(ftdmchan);*/
+			ft_to_sngss7_bla(ftdmchan);
 
 			/* throw the done flag */
 			sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_LC_BLOCK_RX_DN);
 			
+			if (sngss7_tx_block_status_clear(sngss7_info)) {
+				sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_LC_BLOCK_RX_DN);
+				sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_LC_BLOCK_RX);
+				ft_to_sngss7_ubl(ftdmchan);
+			} else {
 				/* bring the sig status down */
 				sngss7_set_sig_status(sngss7_info, FTDM_SIG_STATE_DOWN);
+			}
 
-			/* check the last state and return to it to allow the call to finish */
-			goto suspend_goto_last;
 		}
 
 		if (sngss7_test_ckt_blk_flag (sngss7_info, FLAG_CKT_LC_UNBLK_RX)) {
@@ -1458,15 +1478,13 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_LC_UNBLK_RX);
 
 			/* send a uba */
-			/*ft_to_sngss7_uba(ftdmchan);*/
+			ft_to_sngss7_uba(ftdmchan);
 			
 			if (sngss7_channel_status_clear(sngss7_info)) {
 				sngss7_set_sig_status(sngss7_info, FTDM_SIG_STATE_UP);
 			}
 
 
-			/* check the last state and return to it to allow the call to finish */
-			goto suspend_goto_last;
 		}
 		/**********************************************************************/
 		if (sngss7_test_ckt_blk_flag (sngss7_info, FLAG_CKT_UCIC_BLOCK) &&
@@ -1488,8 +1506,6 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 			/* throw the done flag */
 			sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_UCIC_BLOCK_DN);
 			
-			/* bring the channel down */
-			goto suspend_goto_last;
 		}
 
 		if (sngss7_test_ckt_blk_flag (sngss7_info, FLAG_CKT_UCIC_UNBLK)) {
@@ -1521,6 +1537,23 @@ ftdm_status_t ftdm_sangoma_ss7_process_state_change (ftdm_channel_t * ftdmchan)
 		SS7_DEBUG_CHAN(ftdmchan,"No block flag processed!%s\n", "");
 
 suspend_goto_last:
+		if (ftdmchan->last_state == FTDM_CHANNEL_STATE_UP) {
+			/* proceed to UP */
+		} else if (!sngss7_channel_status_clear(sngss7_info)) {
+			SS7_DEBUG_CHAN(ftdmchan,"Channel opted to stay in RESTART due to reset/blocks!%s\n", "");
+			SS7_DEBUG_CHAN(ftdmchan,"Current flags: ckt=0x%X, blk=0x%X, circuit->flag=0x%X\n",
+			                                         sngss7_info->ckt_flags, sngss7_info->blk_flags,
+			                                         sngss7_info->circuit->flags );
+
+			goto suspend_goto_restart;
+		} else { 	
+			SS7_DEBUG_CHAN(ftdmchan,"Channel signaling is up proceed to DOWN! [Last State=%s]\n", ftdm_channel_state2str(ftdmchan->last_state));
+			SS7_DEBUG_CHAN(ftdmchan,"Current flags: ckt=0x%X, blk=0x%X, circuit->flag=0x%X\n",
+			                                         sngss7_info->ckt_flags, sngss7_info->blk_flags,
+			                                         sngss7_info->circuit->flags );
+			ftdmchan->last_state = FTDM_CHANNEL_STATE_DOWN;				
+		}
+
 		state_flag = 0;
 		ftdm_set_state(ftdmchan, ftdmchan->last_state);
 		break;

libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_main.h

@@ -1053,7 +1053,9 @@ if (ftdmchan->state == new_state) { \
 									   FLAG_GRP_MN_BLOCK_TX | \
 									   FLAG_GRP_MN_BLOCK_TX_DN | \
 									   FLAG_GRP_HW_BLOCK_TX | \
-															       FLAG_GRP_HW_BLOCK_TX_DN ))) 
+									   FLAG_GRP_HW_BLOCK_TX_DN | \
+			       						   FLAG_GRP_HW_UNBLK_TX | \
+									   FLAG_CKT_MN_UNBLK_TX	))) 
 
 #define sngss7_block_status_clear(obj) (obj->blk_flags == 0)
 
@@ -1062,12 +1064,23 @@ if (ftdmchan->state == new_state) { \
 														  	FLAG_GRP_RESET_TX | \
 														  	FLAG_GRP_RESET_RX )))
 
-#define sngss7_tx_reset_status_pending(obj) ((sngss7_test_ckt_flag(obj, (FLAG_RESET_TX)) && \
+#define sngss7_tx_reset_sent(obj) ((sngss7_test_ckt_flag(obj, (FLAG_RESET_TX)) && \
 											  sngss7_test_ckt_flag(obj, (FLAG_RESET_SENT))) || \
 											 (sngss7_test_ckt_flag(obj, (FLAG_GRP_RESET_TX)) && \
 											  sngss7_test_ckt_flag(obj, (FLAG_GRP_RESET_SENT))))
 
-#define sngss7_channel_status_clear(obj) ((sngss7_block_status_clear(obj)) && (sngss7_reset_status_clear(obj)))
+#define sngss7_tx_reset_status_pending(obj) (sngss7_test_ckt_flag(obj, (FLAG_RESET_TX)) || sngss7_test_ckt_flag(obj, (FLAG_GRP_RESET_TX))) 
+	
+#define sngss7_channel_status_clear(obj) ((sngss7_block_status_clear(obj)) && \
+					  					  (sngss7_reset_status_clear(obj)) && \
+										  (!sngss7_test_ckt_flag((obj),FLAG_INFID_PAUSED)))
+
+#define sngss7_tx_reset_restart(obj) do { clear_tx_grs_flags((obj)); \
+										  clear_tx_grs_data((obj)); \
+            							  clear_tx_rsc_flags((obj)); \
+										  sngss7_set_ckt_flag((obj), (FLAG_RESET_TX)); \
+								     } while (0);
+ 
 
 
 #ifdef SMG_RELAY_DBG

libs/freetdm/src/ftmod/ftmod_sangoma_ss7/ftmod_sangoma_ss7_support.c

@@ -2098,6 +2098,55 @@ void sngss7_set_sig_status(sngss7_chan_data_t *sngss7_info, ftdm_signaling_statu
 	return;
 }
 
+#if 0
+ftdm_status_t check_for_invalid_states(ftdm_channel_t *ftmchan)
+{
+	sngss7_chan_data_t  *sngss7_info = ftdmchan->call_data;
+
+	if (!sngss7_info) {
+			SS7_WARN_CHAN(ftdmchan, "Found ftdmchan with no sig module data!%s\n", " ");
+			return FTDM_FAIL;
+	}	
+		
+	if (sngss7_test_flag(sngss7_intf, SNGSS7_PAUSED)) {
+		return FTDM_SUCCESS;
+	}
+
+	switch (ftdmchan->state) {
+	case UP:
+	case DOWN:	
+		return FTDM_SUCCESS;
+
+	default:
+		if ((ftdm_current_time_in_ms() - ftdmchan->last_state_change_time) > 30000) {
+			SS7_WARN_CHAN(ftdmchan, "Circuite in state=%s too long - resetting!%s\n", 
+								ftdm_channel_state2str(ftdmchan->state));
+
+			ftdm_channel_lock(ftdmchan);
+				
+			if (sngss7_channel_status_clear(sngss7_info)) {
+				sngss7_tx_reset_restart(sngss7_info);
+
+				if (ftdmchan->state == FTDM_CHANNEL_STATE_RESTART) { 
+					ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_SUSPENDED);
+				} else {
+					ftdm_set_state(ftdmchan, FTDM_CHANNEL_STATE_RESTART);
+				}
+			} else {
+
+			}	
+
+
+			
+			ftdm_channel_unlock(ftdmchan);
+		}	
+	}	
+
+	return FTDM_SUCCESS;
+}
+#endif
+	
+
 /******************************************************************************/
 ftdm_status_t check_for_reconfig_flag(ftdm_span_t *ftdmspan)
 {
@@ -2232,11 +2281,16 @@ ftdm_status_t check_for_reconfig_flag(ftdm_span_t *ftdmspan)
 						SS7_STATE_CHANGE(ftdmchan, FTDM_CHANNEL_STATE_SUSPENDED);
 					}
 
+					/* Only locally blocked, thus remove a remote block */
+					sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX);
+					sngss7_clear_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX_DN);
+
 					break;
 				/**************************************************************************/
 				case (2):
 					/* remotely blocked */
 					sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX);
+					sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX_DN);
 
 					/* set the channel to suspended state */
 					SS7_STATE_CHANGE(ftdmchan, FTDM_CHANNEL_STATE_SUSPENDED);
@@ -2244,8 +2298,11 @@ ftdm_status_t check_for_reconfig_flag(ftdm_span_t *ftdmspan)
 				/**************************************************************************/
 				case (3):
 					/* both locally and remotely blocked */
+					if (!sngss7_test_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_TX)) {
 						sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_UNBLK_TX);
+					}
 					sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX);
+					sngss7_set_ckt_blk_flag(sngss7_info, FLAG_CKT_MN_BLOCK_RX_DN);
 
 					/* set the channel to suspended state */
 					SS7_STATE_CHANGE(ftdmchan, FTDM_CHANNEL_STATE_SUSPENDED);

libs/freetdm/src/include/private/ftdm_core.h

@@ -469,6 +469,7 @@ struct ftdm_channel {
 	int32_t txdrops;
 	int32_t rxdrops;
 	ftdm_usrmsg_t *usrmsg;
+	ftdm_time_t last_state_change_time;
 };
 
 struct ftdm_span {